diff options
author | 2015-11-29 08:22:13 -0800 | |
---|---|---|
committer | 2015-11-29 08:22:13 -0800 | |
commit | df5afa4fcd9725380f94ca6476248d4cc24f889a (patch) | |
tree | 65456f62397305febf7f40778c5a413a35d094ef /framework/src/audit/lib/gen_tables.h | |
parent | 76f6bf922552c00546e6e85ca471eab28f56986c (diff) |
v2.4.4 audit sources
Change-Id: I9315a7408817db51edf084fb4d27fbb492785084
Signed-off-by: Ashlee Young <ashlee@wildernessvoice.com>
Diffstat (limited to 'framework/src/audit/lib/gen_tables.h')
-rw-r--r-- | framework/src/audit/lib/gen_tables.h | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/framework/src/audit/lib/gen_tables.h b/framework/src/audit/lib/gen_tables.h new file mode 100644 index 00000000..84237a28 --- /dev/null +++ b/framework/src/audit/lib/gen_tables.h @@ -0,0 +1,102 @@ +/* gen_tables.h -- Declarations used for lookup tables. + * Copyright 2008 Red Hat Inc., Durham, North Carolina. + * All Rights Reserved. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Authors: + * Miloslav Trmač <mitr@redhat.com> + */ +#ifndef GEN_TABLES_H__ +#define GEN_TABLES_H__ + +#include <stddef.h> +#include <stdint.h> + +/* Assumes ASCII; verified in gen_tables.c. */ +#define GT_ISUPPER(X) ((X) >= 'A' && (X) <= 'Z') +#define GT_ISLOWER(X) ((X) >= 'a' && (X) <= 'z') + +inline static int s2i__(const char *strings, const unsigned *s_table, + const int *i_table, size_t n, const char *s, int *value) +{ + ssize_t left, right; + + left = 0; + right = n - 1; + while (left <= right) { /* invariant: left <= x <= right */ + size_t mid; + int r; + + mid = (left + right) / 2; + /* FIXME? avoid recomparing a common prefix */ + r = strcmp(s, strings + s_table[mid]); + if (r == 0) { + *value = i_table[mid]; + return 1; + } + if (r < 0) + right = mid - 1; + else + left = mid + 1; + } + return 0; +} + +inline static const char *i2s_direct__(const char *strings, + const unsigned *table, int min, int max, + int v) +{ + unsigned off; + + if (v < min || v > max) + return NULL; + off = table[v - min]; + if (off != -1u) + return strings + off; + return NULL; +} + +inline static const char *i2s_bsearch__(const char *strings, + const int *i_table, + const unsigned *s_table, size_t n, + int v) +{ + ssize_t left, right; + + left = 0; + right = n - 1; + while (left <= right) { /* invariant: left <= x <= right */ + size_t mid; + int mid_val; + + mid = (left + right) / 2; + mid_val = i_table[mid]; + if (v == mid_val) + return strings + s_table[mid]; + if (v < mid_val) + right = mid - 1; + else + left = mid + 1; + } + return NULL; +} + +struct transtab { + int value; + unsigned offset; +}; + +#endif |